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Magnum Mini F4 35A Manual ‐ V1.5

（OMNIBUSF4 Firmware）

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Features

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weight specification● Total weight: 17.21g

Flight controller(OMNIBUSF4 Firmware)● STM32F405 MCU● MPU6000 accelerometer/gyro (connected via SPI)● On-board OSD● On-board Buzzer● Integrated 5V/3A BEC● Dedicated PPM/ Sbus receiver input● 30x27mm board with 20mmmounting holes.

ESC● Continuous current 35A ( max burst 40A)● Supply voltage 2-6S Lipo( 1700kv Motor LIMIT for 6S )● STM32F051K6U6 MCU● BLHeli_32 firmware,support DSHOT,MULTISHOT,ONESHOT125● Top quality MOSFET● 3oz high TG PCB board● 32x37mm board with 20mmmounting holes.● Current Sensor

VTX● Frequency band:5658-5945MHz (FCC Compliant Channels / with HAM unlock)● TBS Audio Control● Channel:37● Transmit power:13dBm/23dBm(25mW/200mW)● Supply voltage:4.5V-5.5V● Antenna port :50Ω

Via Device Firmware Upload（DFU，USB）-windows

Required Software:

A OMNIBUSF4.hex file (for flashing).

Zadig USB driver installation -> http://zadig.akeo.ie/

Betaflight Configurator

Flashing steps:

Place the board into DFU mode by boot button on top of the board. Your device will be detected asa STM Device in DFU mode (or STM BOOTLOADER).

Load up Zadig USB driver and select the STM DFU or STM BOOTLOADER device (if it is not listedplease confirm step 1, and / or select "Options / View All Devices" in the Zadig menu. Install theWinUSB driver.

http://zadig.akeo.ie/

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Virtual Communications PortThe F3 Magnum utilises the STM32 Virtual Com Port (VCP). This allows the UARTs on board to be utilised whilst the USB is connected. Thisrequires the STM VCP driver to be installed in order for the VCP to be recognised.

The STM32 VCP driver can be downloaded here --> http://www.st.com/web/en/catalog/tools/PF257938

NOTE: Once you download and run the installation it has not installed the driver, merely unpacked the choice of drivers. Locate theinstallation directory and then run the EXE file pertaining to your system.

e.g. C:\Program Files (x86)\STMicroelectronics\Software\Virtual comport driver\Win8\

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SPEKTRUM Receiver settings (if your radio is FrSky skip steps 1-2)1) Turn off Sbus inversion in CLI tab by typing the command in red box below then hit “Enter” onkeyboard.

2) Once command has been recognized you must type in “save” and hit “Enter” key before exiting CLI menu

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3) Receiver setup in Settings Menu

In “Receiver Mode” box please choose “Serial based receiver”. In the “Serial Receiver Provider” box please selectthe protocol that is compatible with your radio system. “SBUS” is most common for FrSky or Futaba radios and“Spektrum2048” for DSM radios.

Port settings for all Serial Based Receivers:

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